A100 percent efficient iron-cored transformer has a primary winding with 1820 turns and a secondary winding with 125 turns. If the ac voltage across the primary winding is 110 V, what will be the ac...

A100 percent efficient iron-cored transformer has a primary winding with 1820 turns and a secondary winding with 125 turns. If the ac voltage across the primary winding is 110 V, what will be the ac voltage across the secondary?

The transformer in Prob. 3.18 has a resistive load of 2.2 kΩ across its secondary. What impedance does the transformer present to the source?